What is the difference between Midjourney v1 and Midjourney v4?

Both are developed by Midjourney but target different use cases. You can compare their actual outputs across 3 challenges on Rival to see how they differ in practice.

Which is better, Midjourney v1 or Midjourney v4?

It depends on your use case. Midjourney v1 and Midjourney v4 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 3 challenges so you can judge which fits your needs best.

How can I compare Midjourney v1 and Midjourney v4 on Rival?

This page shows a side-by-side comparison of Midjourney v1 and Midjourney v4 across shared challenges. You can vote on which model produced the better output, and Pro users can create custom challenges to test both models with their own prompts.